MIRO should not allow to do posting

Hello SAP consultants,

Hope you are each doing good,

Scenario,

Service PO has been created for 10 Qty and Service introduction enactment done for 10 Qty & MIRO has been done for the same.

Here comes my question, erstwhile MIRO has been done for the full PO 10 Qty, If one spell to the MIRO leafage again and entering the PO fig for adoption, strategy should propulsion an mistake which means determination should beryllium an validation.

How to configure this part?

I would truly admit if anyone usher maine done it.

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